HOMEWORK 3 SOLUTIONS
1. In the early part of this century, the drug company, Merck, produced a powerful nonsteroidal anti-inflammatory drug (NSAID) known as Vioxx. Vioxx was very effective in
reducing pain due to arthritis and, unlike some NSAIDs, did not
29.
National mean annual salary= $90,000 and n=25
a. Formulate hypotheses that can be used to determine whether the population mean annual
administrator salary in Ohio differs from the national mean of $90,000.
Null Hypothesis H0: = 90,000
Alternative Hyp
NAME:_
PUID:_
QUIZ 4 VERSION 2
Scatterplot of Age vs Diameter
20
Age
15
10
5
0.1
0.2
0.3
0.4
0.5
0.6
Diameter
Abalone is a large shellfish considered a delicacy in many types of cuisine, particularly
sushi. Abalone that is 10 years old or older is best fo
NAME:_
PUID:_
QUIZ 4 VERSION 1
Scatterplot of Age vs Diameter
20
Age
15
10
5
0.1
0.2
0.3
0.4
0.5
0.6
Diameter
Abalone is a large shellfish considered a delicacy in many types of cuisine, particularly
sushi. Abalone that is 10 years old or older is best fo
C N: {2M 2’“ i;
4/4/2016 3:52:13 PM
Welcome to Minitab, press F1 for help.
Results for: MBA Starting Salaries.MTW
Regression Analysis: Salary and Bonus ($1000) versus Tuition 8: Fees ($1000)
Model Summary :Ignofe
W " is. x 90‘" 0 0/63
Esiimnio oi “9W
VERSION 2
MGMT 305 Spring 16 Midterm 1
Wednesday, Feb. 17, 2016, 6:30-7:30
EE 129 or PHYS 114
NAME:_
Purdue ID:_
This exam consists of 20 multiple choice questions covering Chapters 1-4. For
each question, select the one best answer and mark your choice o
VERSION 1
MGMT 305 Spring 16 Midterm 1
Wednesday, Feb. 17, 2016, 6:30-7:30
EE 129 or PHYS 114
NAME:_
Purdue ID:_
This exam consists of 20 multiple choice questions covering Chapters 1-4. For
each question, select the one best answer and mark your choice o
By signing below, I affirm that I have not and will not provide or accept information about the contents
of this Exam to or from another student. I understand that if I engage in any form of academic
dishonesty I will receive a grade of F for this course.
NAME:
PUID:
QUIZ 1 VERSION 3
1.
A.
B.
C.
D.
Lasertech buys synthetic diamonds to use in the production of medical and industrial lasers. A
usable synthetic diamond is one that has 8 or fewer flaws. In a recent batch of synthetic
diamonds presented to them
NAME:
PUID:
QUIZ 1 VERSION 4
1.
A.
B.
C.
D.
Lasertech buys synthetic diamonds to use in the production of medical and industrial lasers. A
usable synthetic diamond is one that has 8 or fewer flaws. In a recent batch of synthetic
diamonds presented to them
NAME:
PUID:
QUIZ 1 VERSION 2
1.
A.
B.
C.
D.
Lasertech buys synthetic diamonds to use in the production of medical and industrial lasers. A
usable synthetic diamond is one that has 8 or fewer flaws. In a recent batch of synthetic
diamonds presented to them
NAME:
PUID:
QUIZ 1 VERSION 1
1.
A.
B.
C.
D.
Lasertech buys synthetic diamonds to use in the production of medical and industrial lasers. A
usable synthetic diamond is one that has 8 or fewer flaws. In a recent batch of synthetic
diamonds presented to them
HW 2 Supplemental Problems
1.
a.
Histogram of C1
7
6
Frequency
5
4
3
2
1
0
1
000
1
050
100
1
150
1
1
200
1
250
1
300
C1
I was expecting the histogram to have a symmetrical shape with the mean directly in the center.
However the right side of the graph doe
Audrey Pierick
0025475837
Section 0001
Due date: 4/17/15
1.
Correlation: Avg. Total Score, % Takers
Pearson correlation of Avg. Total Score and % Takers = -0.887
The % Takers variable is a better predictor of the average total score (compared to per pupil
Audrey Pierick
0025475836
Section 0001
3/24/15
HOMEWORK #6
21.
USE PAIRED T TEST
H0: mean of difference 0 (mean after mean before)
Ha: mean of difference > 0
One-Sample T: Difference
Test of = 0 vs > 0
Variable
Difference
N
8
Mean
0.625
StDev
1.302
SE Mea
Audrey Pierick
0025475837
Section 0001
Due 3/12
Chapter 10
9)
Two-Sample T-Test and CI
Sample
1
2
N
20
30
Mean
22.50
20.10
StDev
2.50
4.80
SE Mean
0.56
0.88
Difference = (1) - (2)
Estimate for difference: 2.40
95% CI for difference: (0.31, 4.49)
T-Test of